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1/ J Bonestroo <br />Rosene <br />Anderlik& <br />\\\\ Associates <br />Engineers & Architects <br />Bonestroo, Rosene. Anderlik and Associates. Inc. Is an Affirmative Actiot\/£qujl Opportunity Employer <br />Principals: Otto G. Bonestroo. RE. • Joseph C. Anderlik. RE. • Marvin L Sorvala. PE. • <br />Richard E. Turner. RE. • Glenn R. Cook. RE. • Robert G Schunicht. PE. • Jerry A. Bourdon. RE. • <br />Robert W. Rosene. RE. and Susan M. Eberlm. C.PA. Senior Consultants <br />Associate Principals: Hovrard A. Sanford. PE. • \eith A. Gordon. RE. • Robert R. Pfefferle. PE. • <br />Richard W. Foster. PE. • David O. Luskota. RE • Robert C. Russek. A.I.A. • Mark A. Hanson. RE. • <br />Michael T. Rautmann. RE. • Ted KJield. PE. • Kenneth R Anderson. RE. • Mark R. Rolfs. RE. • <br />Sidney P. Williamson. PE.. LS. • Robert f. Koamiih • Agnes M. Ring • Michael R Rau. RE. • <br />Allan Rick Schmidt. PE. <br />Offices: St. Paul. Rochester. Wlllmar and St. Cloud. MN • Mil.vaukee. Wl <br />Wetislte: www.bonestroo com <br />January 5,1999 ~ 7 r-. <br />Elizabeth VanZomeren <br />City Planner/Zoning Administrator <br />City of Orono <br />Post Office Bo-\ 66 <br />Crystal Bay, MN 55323 <br />0 6 <br />\./l: I Wl <br />Re: Peter Boynton Residence <br />File No. 139-2410 <br />Dear Liz: <br />We have reviewed the preliminary grading plan for the proposed new home construction at the Petier Boynton <br />residence. The site is located at 1973 Fagemess Point Road in the northeast quarter of Section 18. We have <br />the following comments in regards to engineering matters. <br />1. Access: The drawing submitted for our review contains a lot of information and is difficult to understand <br />at times. It is unclear whether the proposed driveway will be paved or gravel. We recommend the new <br />driveway be bituminous or concrete to prevent sediments from washing to the lake. <br />2. Grading: The grading plan shows the site being lowered by approximately 4 feet near the middle of the <br />site. The proposed plans indicate grading up to the lot lines of the neighboring properties on both sides <br />of the Boynton property. The size of the existing lot and the amount of proposed grading may impact the <br />neighboring properties and might require easements. The grading plan shows a 944 contour tying into a <br />946 contour along the northeast lot line, plans should be revised and corrected. Proposed contours <br />northeast of the garage scale 2:1. We recommend that slopes that will be maintained not exceed 3:1. <br />Erosion control is a big concern as the lake borders two sides of the property. An erosion control plan for <br />the entire site should be submitted for review. Erosion control measures should be in place prior to any <br />grading and maintained throughout construction until vegetation is established. <br />3. Drainage: Impacts to the lake should be minimized. Phosphorous loadings leaving the site should be <br />limited to a maximum of 0.28 pounds/acre/year. The site lends itself to some sort of best management <br />practice (BMP) such as vegetated buffer strips to treat runoff leaving the site. <br />4. Easements: Drainage and utility easements should be provided 5 feet wide along all interior lot lines and <br />10 feet wide along the roadway right-of -ways. <br />Please contact me at (604-4863) if you have any questions regarding this matter. <br />Yours very truly, <br />BONESTROO, ROSENE, ANDERLIK & ASSOCIATES, C4C. <br />Tom Kellog <br />Cc: Greg Gappa, City of Orono <br />2335 West Highway 36 ■ St. Paul. MN 55113 ■ 612-636-4600 ■ Fax: 612-636-1311